CRUST BIKES Heartbreaker Crankset

Shot to the Heart! Crust interprets the modernslim-arm compact double crank

Taking a cue from the classic Sugino Ritchey Logic crankset, we have adopted a slim arm shape with a large offset.

The larger arm offset allows for a shorter bottom bracket (BB) than typical square taper cranks.
This allows for a cleaner chainline on frames with wider chainstays, such as Evasion and Wombat in 1x configuration, leading to improved shifting performance and reduced drivetrain wear.
It also eliminates the need for BBs that are too long, which makes for a cleaner look and feel.

An aluminum cap with fixing bolt and crank removal function is included.
Be sure to install the included plastic washers between the cap and bolt.

[SPEC].

Chainline (with BB 110mm): 47.5mm
Q-factor (with 68mm shell + BB 110mm): approx. 155mm
Country of manufacture: Taiwan
Material: forged aluminum
Outer chainring BCD: 110 x 5
Inner chainring BCD: 74 x 5
BB standard: JIS square taper ( Varies depending on chassis, but 110-113mm is approximate)
Crank length: 170mm
Teeth: 42/26T
Weight: 702g (with bolts and extractors installed)